US Patent 8083654 Apparatus for rehabilitation

A method and apparatus for exercising and rehabilitating muscles, muscle groups, ligaments and soft tissue connecting limbs and limb extremities wherein the limb extremity is suspended by tension means in an environment that stabilizes the limb position while facilitating the movement of the extremity in space. The apparatus includes tension members to develop and provide desired counter forces in opposition to those created by strain of the selected muscles, muscle groups, ligaments and soft tissue.